Efficacy and Safety of Injectable Association of Dexamethasone, Dipyrone and Hydrocobalamin in Lumbar Sciatic Pain

Inclusion Criteria: * Sign the study informed consent form; * To be diagnosed with moderate to severe lumbar sciatic pain (defined as limiting the work activities or the ordinary tasks performance or at the investigator's discretion) within the last 3 days; * Aged 18 to 75 years old; * To be able to meet the study procedures Exclusion Criteria: o-Diagnosed with chronic rheumatologic diseases, except recurrent lumbar sciatic pain; * Patients with one of the following conditions, as per the investigator's criteria: * Severe renal failure under hemodialysis, severe liver failure, uncontrolled severe heart failure; * Severe injuries on gastrointestinal tract; * Other severe comorbidities; * Patients taking acetylsalicylic acid or any anti-clotting; * Female patients who are pregnant, lactating, willing to get pregnant or not willing to use an appropriate contraceptive method during the study period.